CCCSD Filter Plant and Clearwell Improvements
Central San’s Treatment Plant cleans an average of 34 million gallons of wastewater per day. Located in Martinez, the plant has a treatment capacity of 54 million gallons per day (mgd) and 240 mgd of wet weather flow. Wastewater moves through Central San’s 1,500 miles of sewer lines, finally arriving at the plant’s headworks to begin treatment. Most of the wastewater is treated to a secondary level, disinfected by ultraviolet light, and then discharged into Suisun Bay. Approximately 600 million gallons per year are treated to a tertiary level through additional filtration and disinfection before being distributed as recycled water. These new 3 million gallon storage tanks, electrical substation, and modified wet weather holding basin will allow Central San to allocate more of its treated water for recycled water uses within the community, such as landscape irrigation, industrial processes and plant operations.